Bohai Shipbuilding Heavy Industrial Corporation is putting the finishing touches on its new facility, which will start production this year. BSHIC, based in Huludao, Liaoning Province, is China's only builder of nuclear submarines. It previously built the Type 091, 093 nuclear attack submarines (SSN) and Type 092 and 094 nuclear ballistic missile submarine (SSBN). Why is this building such a big deal? Simple, really: inside a superstructure, submarines are hidden from snoops, spies, and satellites. It also provides a controlled environment for development and construction.